Re: FM "deviation"
If anyone is interested in plumbing the murky depths of Bessel functions and FM sidebands, Excel has the Bessel function as part of the analysis pack. ( It's not installed by default. For Excel 2000 it's Tools > Add-Ins > Analysis ToolPak)
I've attached a simple spreadsheet for calculating the amplitude of the first 10 sidebands relative to the unmodulated carrier for a number of values of modulation index. (Sheet1 absolute, Sheet2 dB)
Jim
|